Identification

Field	Value
Title	Tweed LGA Vegetation 2012. VIS_ID 3912
Alternative title(s)	TweedLGA_2012_E_3912
Abstract	Tweed Shire Council Local Government Area Vegetation Mapping from various sources including Comprehensive Regional Assessment (CRA) data and further refined up to 2012. In 2011 an update of the mapping was undertaken by Mark Kingston and Peter Hall. The bushland boundaries of Council’s existing vegetation mapping layer were updated and revised at approximately 1:5000 scale consistent with shire wide aerial photography captured during October 2009. Real and apparent changes to bushland between 2007 and 2009 are also reported. Boundaries between vegetation communities within areas of bushland were not updated. NB. The current version was finalised January 2012 but was named Tweed_veg_2009_update by the Council since it was updated using Aerial Photography from 2009. VIS_ID 3912.
Resource locator
Show on SEED Web Map	Name: Show on SEED Web Map Protocol: WWW:DOWNLOAD-1.0-http--download Description: Display dataset on SEED's map Function: download
Data Quality Statement	Name: Data Quality Statement Protocol: WWW:DOWNLOAD-1.0-http--download Description: DQS for Tweed Vegetation Map Function: download
Download Package	Name: Download Package Protocol: WWW:DOWNLOAD-1.0-http--download Description: Data and Documents Function: download
WMS	Name: WMS Protocol: WWW:DOWNLOAD-1.0-http--download Description: Web Map Service Function: download
REST Service	Name: REST Service Protocol: WWW:DOWNLOAD-1.0-http--download Description: ESRI REST Services directory Function: download
Unique resource identifier
Code	e18f8b65-56bd-4ae7-907b-dbfeb0f58991
Presentation form	Document digital
Edition	1
Dataset language	English
Metadata standard
Name	ISO 19115
Edition	2016
Dataset URI	https://datasets.seed.nsw.gov.au/dataset/e18f8b65-56bd-4ae7-907b-dbfeb0f58991
Purpose	To update Tweed Shire Council's vegetation map.
Status	Completed
Spatial representation
Type	vector
Spatial reference system
Code identifying the spatial reference system	4283
Equivalent scale	1:None
Additional information source	Vegetation mapping commissioned by Council. Metadata entered by OEH.Kingston,M and Hall,P. (2011). Report on Update of Tweed Shire Council Vegetation Mapping 2011. Unpublished report. October, 2011.Mark Kingston -Tweed Shire Council (email: mkingston@tweed.nsw.gov.au)Peter Hall (email: peterhall@limpinwood.net)

Classification of spatial data and services

Field	Value
Topic category

Keywords

Field	Value
Keyword set
keyword value	VEGETATION VEGETATION-Floristic
Originating controlled vocabulary
Title	ANZLIC Search Words
Reference date	2008-05-16
Geographic location
West bounding longitude	153.3073
East bounding longitude	153.6797
North bounding latitude	-28.4356
South bounding latitude	-28.1003
NSW Place Name	Tweed
Vertical extent information
Minimum value	-100
Maximum value	2228
Coordinate reference system
Authority code	urn:ogc:def:cs:EPSG::
Code identifying the coordinate reference system	5711
Temporal extent
Begin position	2007-01-01
End position	N/A
Dataset reference date
Resource maintenance
Maintenance and update frequency	Unknown
Contact info
Contact position	Data Broker
Organisation name	NSW Department of Climate Change, Energy, the Environment and Water
Telephone number	131555
Email address	data.broker@environment.nsw.gov.au
Web address	https://www.nsw.gov.au/departments-and-agencies/dcceew
Responsible party role	pointOfContact

Quality and validity

Field	Value
Lineage	Baseline data for the project were provided by TSC: Vegetation mapping (TWEED_SP_VEG2008_UPDATE.shp). This layer originated from the Tweed Vegetation Management Plan 2004 (TVMS) and was previously updated in 2008 based on 2007 aerial photography. 2009 Orthophoto tiles (Hinterland @ .35 mtr pixel; Flown October 2009) 2009 Orthophoto tiles (Coastal and hinterland villages @ .15mtr pixel Flown October 2009 2007 Orthophoto tiles (LGA; Flown May 2007) The following steps were undertaken to revise and update the vegetation mapping supplied: Pre-processing to filter and remove very small polygons. The existing vegetation mapping contained approx 2500 island polygons, less than 1000 sq metres, that were recorded as “Not Assessed” vegetation type. The linework for these polygons had been derived programmatically via image analysis some years ago. At that time the available imagery was at a much coarser scale and the orthorectification was not as precise as is currently available. Examination of these polygons against the .15 pixel 2009 photographs revealed that many were subject to some degree of spatial misalignment. After discussion with Mark Kingston and John Turnbull (TSC) it was decided to remove the polygons from the vegetation layer. These polygons were tagged and appended to the editing layer described below. Visual comparison of 2007 and 2009 aerial photos. This stage involved the creation of an “edit” layer to identify and classify areas of actual and apparent change within the following categories: Incorporation of edits into vegetation layer. The existing vegetation layer was intersected with the editing layer, the linework and attributes updated and a new vegetation layer produced. Additional areas of bushland (code 1 above) identified during the update were ascribed the “Not Assessed” vegtype category. Adjacent polygons with the same attributes were dissolved. Post-processing to remove overlay artifacts. The vegetation layer was exported to TNTMips for an automated, controlled removal of several thousand small polygons (intersection artifacts) that satisfied any of the following criteria: • Any “Not Assessed”, non-island veg polygon less than 1000 sq m • Any “Not Assessed” veg polygon less than 2500 sq mtrs with extreme compactness ratio (>3) adjacent to a single bushland polygon • Any polygon less than 250 sq m Polygons falling into any of these categories were amalgamated with the adjacent bushland polygon. Data export The updated vegetation and edits layers were topologically validated and exported to ArcGIS filegeodatabase format.

Field

Value

Lineage

Baseline data for the project were provided by TSC:

Vegetation mapping (TWEED_SP_VEG2008_UPDATE.shp). This layer originated from the Tweed Vegetation Management Plan 2004 (TVMS) and was previously updated in 2008 based on 2007 aerial photography.
2009 Orthophoto tiles (Hinterland @ .35 mtr pixel; Flown October 2009)
2009 Orthophoto tiles (Coastal and hinterland villages @ .15mtr pixel Flown October 2009
2007 Orthophoto tiles (LGA; Flown May 2007)

The following steps were undertaken to revise and update the vegetation mapping supplied:

Pre-processing to filter and remove very small polygons. The existing vegetation mapping contained approx 2500 island polygons, less than 1000 sq metres, that were recorded as “Not Assessed” vegetation type. The linework for these polygons had been derived programmatically via image analysis some years ago. At that time the available imagery was at a much coarser scale and the orthorectification was not as precise as is currently available. Examination of these polygons against the .15 pixel 2009 photographs revealed that many were subject to some degree of spatial misalignment. After discussion with Mark Kingston and John Turnbull (TSC) it was decided to remove the polygons from the vegetation layer. These polygons were tagged and appended to the editing layer described below.
Visual comparison of 2007 and 2009 aerial photos. This stage involved the creation of an “edit” layer to identify and classify areas of actual and apparent change within the following categories:
Incorporation of edits into vegetation layer. The existing vegetation layer was intersected with the editing layer, the linework and attributes updated and a new vegetation layer produced. Additional areas of bushland (code 1 above) identified during the update were ascribed the “Not Assessed” vegtype category. Adjacent polygons with the same attributes were dissolved.
Post-processing to remove overlay artifacts. The vegetation layer was exported to TNTMips for an automated, controlled removal of several thousand small polygons (intersection artifacts) that satisfied any of the following criteria:

• Any “Not Assessed”, non-island veg polygon less than 1000 sq m

• Any “Not Assessed” veg polygon less than 2500 sq mtrs with extreme compactness ratio (>3) adjacent to a single bushland polygon

• Any polygon less than 250 sq m

Polygons falling into any of these categories were amalgamated with the adjacent bushland polygon.

Data export

The updated vegetation and edits layers were topologically validated and exported to ArcGIS filegeodatabase format.

Constraints related to access and use

Field	Value
Limitations on public access

Data Quality

Field	Value
Scope	dataset
DQ Completeness Commission
Effective date	2001-01-01
DQ Completeness Omission
Effective date	2001-01-01
DQ Conceptual Consistency
Effective date	1900-01-01
DQ Topological Consistency
Effective date	1900-01-01
DQ Absolute External Positional Accuracy
Effective date	1900-01-01
DQ Non Quantitative Attribute Correctness
Effective date	1900-01-01

Responsible organisations

Field	Value
Responsible party
Contact position	Data Broker
Organisation name	NSW Department of Climate Change, Energy, the Environment and Water
Telephone number	131555
Email address	data.broker@environment.nsw.gov.au
Web address	https://www.nsw.gov.au/departments-and-agencies/dcceew
Responsible party role	pointOfContact

Metadata on metadata

Field	Value
Metadata point of contact
Contact position	Data Broker
Organisation name	NSW Department of Climate Change, Energy, the Environment and Water
Telephone number	131555
Email address	data.broker@environment.nsw.gov.au
Web address	https://www.nsw.gov.au/departments-and-agencies/dcceew
Responsible party role	pointOfContact
Metadata date	2024-02-26T13:04:41.350783
Metadata language

Identification

Title

Alternative title(s)

Abstract

Resource locator

Unique resource identifier

Code

Presentation form

Edition

Dataset language

Metadata standard

Name

Edition

Dataset URI

Purpose

Status

Spatial representation

Type

Spatial reference system

Code identifying the spatial reference system

Equivalent scale

Additional information source

Classification of spatial data and services

Topic category

Keywords

Keyword set

keyword value

Originating controlled vocabulary

Title

Reference date

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

NSW Place Name

Vertical extent information

Minimum value

Maximum value

Coordinate reference system

Authority code

Code identifying the coordinate reference system

Temporal extent

Begin position

End position

Dataset reference date

Resource maintenance

Maintenance and update frequency

Contact info

Contact position

Organisation name

Telephone number

Email address

Web address

Responsible party role

Quality and validity

Lineage

Constraints related to access and use

Limitations on public access

Data Quality

Scope

DQ Completeness Commission

Effective date

DQ Completeness Omission

Effective date

DQ Conceptual Consistency

Effective date

DQ Topological Consistency

Effective date

DQ Absolute External Positional Accuracy

Effective date

DQ Non Quantitative Attribute Correctness

Effective date

Responsible organisations

Responsible party

Contact position

Organisation name

Telephone number

Email address

Web address